deputy sheriff:
(17c)

1. An officer who, acting under the direction of a sheriff, may perform most of the duties of the sheriff ’s office.  *  Although undersheriff is broadly synonymous with deputy sheriff; writers have sometimes distinguished between the two, suggesting that a deputy is appointed for a special occasion or purpose, while an undersheriff is permanent. — aka undersheriff; general deputy; vice-sherijf. [1]

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